Primitive arthropods, Biology

Assignment Help:

Primitive Arthropods

The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of the presence of rows of papillae on them. Each leg consists of two parts, a conical proximal part along with their extrinsic muscles, and a small distal part comprising a pair of claws.

183_Primitive Arthropods.png

Figure: Peripatus lateral view of head

The limbs are protracted and retracted. Using these legs, and through extension and contraction of the body for working the legs they crawl. While a segment is extended, the legs are lifted and moved forward; subsequent effective stroke provides the animals a pushing force.


Related Discussions:- Primitive arthropods

What are the factors responsible for corneal hydration, What are the factor...

What are the factors responsible for corneal hydration? The factors responsible for corneal hydration are as follows: i. Stromal swelling pressure ii. Barrier function of

Define who classification for assessment of vitamin a status, Define WHO cl...

Define WHO classification for assessment of vitamin A status? In addition, to the above mentioned manifestations, thickening of the hair follicles (follicular hyperkeratosis) i

Effect on microbial growth and ecology, Effect on Microbial Growth and Ecol...

Effect on Microbial Growth and Ecology Redox potential exerts an important selective effect on the microflora of a food since it will decide the type of microorganism that can

Show the communication process steps, Q. Show the Communication process ste...

Q. Show the Communication process steps? Planning - Set goals. - Make a plan with alternatives. - Allow the counsellee to select a alternative which is feasible.

What is ascaris and which disease caused by this worm, Q. What is ascaris? ...

Q. What is ascaris? What is the disease caused by this worm? Ascaris lumbricoides or Ascaris is an animal of the nematode phylum that is a roundworm. Ascaris causes ascariasis,

Define the causes of instrument fracture, Define the Causes of Instrument F...

Define the Causes of Instrument Fracture Too much apical pressure ( specially in narrow or curved canal) Used in dry canal without irrigation or lubricant Excessi

Explain bone resorption, An  osteoclast  is a type of bone cell that absorb...

An  osteoclast  is a type of bone cell that absorbs bone tissue by removing its mineralized matrix and breaking up the  organic bone. This process is known as bone resorption

Biophysics, you are setting up a pcr reaction to amplify a 1000 basepair lo...

you are setting up a pcr reaction to amplify a 1000 basepair long dna grament. in your 50 microliter reaction volume you have 100 nanogrM OD RWMPLrw sn QIRH eoufly 50/50 at/gc 100

Objectives of the earth pressure and retaining structures, What are the obj...

What are the objectives of the earth pressure and retaining structures? After knowing all concepts about the same you should be able to learn: a. Know the field situations w

Deciduous senescence - senescence, Deciduous Senescence - Senescence O...

Deciduous Senescence - Senescence Only the leaves senesce as in many trees. The senescence of leaves, or abscission occurs when at the base of a leaf a layer of cells is laid

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd